Reversing-gear.



PATENTED JULY 31, 1906.

A. S. REED. REVBRSING GEAR. APPLICATION FILED JUNE 28,1904.

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A. S. REED.

REVE'RSING GEAR.

APPLIOATION FILED JUNE.2B,1904.

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UNITED STATES PATENT OFFICE.

ALBERT S. REED, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TREVERSlNG-GEAR.

Specification of Letters Patent.

Patented July 31, 1906.

Application filed June 28, 1904. Serial No. 214.547.

To all whom it may concern:

. Be it known that I, ALBERT S. REED, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented .a certain new and useful Improvement in Reversing-Gear, ofwhich the following isa full, clear, concise, and eX act description.

My invention relates to a gearing designed to transmit power from adriving-shaft to a shaft that is driven, and has especial reference toan arrangement such that the speed, and more particularly the directionof rotation, of the driven shaft will be under certain and easy control,whileavoiding losses in efliciency of transmission due to lateralstrains and end thrusts upon the shafts and bearings and the frictionconsequent thereon.

My invention is capable of wide application in power transmission, butis especially useful in those cases where the direction or speed of thedriven shaft requires to be varied by an attendant, and as a generaltype of such gearing I may mention that used in connection withautomobiles, gasolene-launches, engine-lathes, and in general allmachinery characterized by more or less frequent reversal in operation.

Briefly stated, my invention comprises, first, an idler or supplementaryfrictionwheel driven directly by a main frictionwheel and arranged topress upon and drive one of a pair of friction-disks carried by theshaft to be driven while the main frictionwheel is acting on the otherdisk of the pair, thus rotating said shaft through the agency of bothdisks, which are driven in the same direction.

Second. My invention comprises lever mechanism for readily carrying thesupplemental friction-wheel from one side of the main wheel to the otherto interchange the engagement of the respective wheels with the disks,thereby reversing the direction of rotation and consequently that of thedriven shaft or mechanism.

Third. My invention comprises a set of disks mounted on the driven shaftcombined with the main and supplemental drivingwheels to engagetherewith, said supplemental wheel being adapted to be shifted from oneside to the other of the main wheel and at the same time to move the setof disks longitudinally.

Fourth. I provide not only for reversing the direction of movement ofthe driven shaft, but also for varying the rate of the speed thereof bychanging the position of the engagement of the driving-wheels with thedisks outwardly and inwardly from the shaft carrying the same, it beingobvious that as the bearing of the wheels upon the disks is changed fromthe center outwardly their speed will be diminished.

Fifth. Another feature of my invention consists in means for adjustingthe. distance between the disks to compensate for wear upon thefriction-wheels, so that a sufficient amount of pressure will bemaintained thereon.

My invention will be more readily under stoodby reference to theaccompanying drawings, in which Figure 1 is a side elevation of themechanism illustrative of my invention. Fig. 2 is an end view thereof.Fig. 3 is a plan View thereof, and Fig. 4 is a detail sectional view online 4 4 of Fig. 2.

Like parts are indicated by similar letters of reference.

The shaft a, which is driven by any suitable motor, is provided with afriction-wheel b. The supplemental friction-wheel c is supported upon aspindle d, which is provided with suitable loose bearings, as mostclearly indicated at d d of Fig. 4. By means of the lever 6 thissupplemental friction-wheel may be carried from one side of the mainfrictionwheel to the other for the purpose of reversing the direction ofrotation of the disks ff as shown most clearly in Figs. 1 and 3. Thisset of disks ff is mounted upon the driven shaft g. The disks f f inaction work as a unit. They are splined to the shaft and adapted to beslid longitudinally thereon by the pressure exerted from the inside ofone or the other of the same, as the case may be, when the supplementalfriction-wheel c is carried from one side of the main wheel to theother. The two positions of the disks and supplemental friction-wheelare indicated by the full lines and dotted lines in Figs. 1 and 3.

The friction-wheels and the lever e are mounted together and associatedwith a sliding plate h and adapted to be moved outwardly or inwardly bymeans of the lever 'i to cause the friction-wheels to engage with thedisks at a greater or less distance from the axis of revolution of thedisks to control or vary the speed of the driven shaft relatively to thespeed of the driving-shaft a,

The disk f is shown as integral with the hub or sleeve is, upon the endof which the disk f is mounted, said disk f being screwed upon the hub,as indicated, and held in position by a lock-nut m.

The friction-wheels may be of fiber, compressed rawhide, or othersuitable material,

and as they are worn down the disk f is read shaft carrying thefriction-roller at an in creased speed, and the terms driving-shaft anddriven shaft where used in the claims will be taken merely as a meansofdesignating the shafts a and g, respectively, whether used in one wayor the other.

I claim- 1, The combination with a driven shaft, of a hub mounted uponsaid shaft, a pair of disks mounted upon said hub, one of said disksbeing mounted adjustably upon the hub, whereby the distance between saiddisks may be varied, a lock-nut screwing upon said hub for fastening theadjustable ,disk, and drivingwheels engaging the inner faces of saiddisks.

2. The combination with a driven shaft, of a pair of friction-disks ffmounted a short distance apart upon a common hub, said hub being splinedto said driven shaft to move longitudinally thereon while rotatingtherewith, one of said disks being adjustably mounted upon said hub,means for locking said disk in its adjusted position, of a drivingshaftat a right angle to saiddriven shaft, a driving friction-roller lyingbetween" said disks and adapted to engage and drive either of themaccording'to the relative position of their common hub upon the drivenshaft, a

supplemental friction-roller mounted torotate upon a spindle, and amounting for said spindle adapted to swing around the drivingshaft as anaXis, whereby the supplemental roller may swing into engagement witheither disk to drive the same and to move the pair of diskslongitudinally to press the other'disk into engagement with the maindrivingroller.

In witness whereof I hereunto subscribe my name this 20th dayofJu'ne,iA."Dl 1904. ALBERT S, vREED. Witnesses: i

' DE Wrrr C. TANNER,

GEO. O. DAVISON.

